Jiaxing | bearing common sense common faults in the tapered roller bearing maintenance

There is rotational, have HRB bearing ( ) Jiaxing bearing group sales co. , LTD. ( The company) Is bearing group co. , LTD. Established in jiaxing spot sales window, specializing in HRB brand bearings, facing the whole country, the existing stock 50 million yuan, covers the whole bearing, have very strong spot supply, is the group's retail sales center. Tapered roller bearing is mainly used with the cars, mining, plastic machinery and other industries, and bearing in the process of using, maintenance is the necessary way to maintenance of tapered roller bearings, found that when we are in tapered roller bearing bearing often arise some problems, which is common in our daily life bearing failure. The author according to understand, here to share some of the common faults in the tapered roller bearing maintenance. 1, pitting pitting: refers to the parts that are scattered or clustered on the surface of small pit. When we are in the process of inspection, found when open the taper roller bearing, the bearing due to the large area of inner ring raceway is pitting is to keep the rack of roller and inner ring raceway in the process of rotation, the temperature rise gradually, cause thermal shaft, the bearing is scrap processing. Of tapered roller bearing raceway surface pitting reasons: 1) metal surface fatigue, under the effect of the cycle of rolling contact stress, the micro crack in the metal surface to form, and gradually developed into a pit of tiny stripping. (2) the surface of the metal inclusions or large granular carbide form stress concentration, early to produce micro-crack and gradually developed into the shed. (3) improper assembly or bad lubrication. 2, bearing grinding bearing grinding 'leather: refers to the bearing surface due to fatigue of very thin metal peeling phenomenon. Bearing grinding skin is one of the common faults in the bearing maintenance, often find a fault in bearing appearance inspection. Below the bearing is a bearing workers in turn the inspection process, found that the bearing rotating different sound, found after decomposition of bearing roller scratch discoloration, outer ring raceway circular grinding skin) 。 The cause of bearing raceway surface skin that comes as follows: (1) the early fatigue on the metal surface. Due to the effect of sliding friction and rolling contact stress of extremely shallow fatigue spalling. (2) material heat treatment. (3) bad lubrication. (4) overload stress. 3, bearing its bearing: refers to the bearing surface under the action of the cycle of high contact stress of metal flake peeling phenomenon. Bearing dissection is one of the most common fault in bearing maintenance, also harm one of the biggest bearing failure factors in the operation of the truck. Bearing after stripping, have a certain depth and area, the surface is uneven squamous, with sharp groove Angle, can hear clearly in the bearing rotation to check different sounds. Bearing stripping commonly occur in the bearing inner and outer ring raceway surface and roller rolling surface. Bearing inner ring raceway surface strip, from bearing appearance inspection, found on the left side of the bearing binding, different sound, after withdrawal, decomposition bearing found outside the bearing inner ring raceway serious stripping, stripping area of about 30 & times; 25mm。 Bearing outer ring raceway surface strip, from bearing appearance inspection, the workers found wheel shaft no. 15942 on the left side of the bearing rotation has a different tone, after decomposition examination found that the bearing outer ring raceway in large area of stripping, the bearing running time less than 4 years. The cause of bearing dissection: (1) bearing material, improper heat treatment led to the low hardness is not standard strength. (2) oil mixed with impurity is one of the factors which causes the inner ring raceway outside stripping. In the process of assembly (3) car with wheel there savage homework, bearing raceway surface by the impact force is one of the factors which causes the bearing stripping. If you are more interested in jiaxing bearing group co. , LTD. The author introduces the information or have any questions, please click on the website on the right side of the online customer service or call:, you full close jiaxing bearing purchasing consultant company. - - - - - - Editor: jiaxing bearing sourcing consultant LTD. All rights reserved, The company) Reprint please indicate the source